Income (Loss) Per Common Share - Schedule of Potentially Dilutive Shares (Detail) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares excluded from the computation of diluted income (loss) per share	624,009	798,887
Restricted stock and restricted stock rights [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares excluded from the computation of diluted income (loss) per share	574,009	571,137
Stock options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares excluded from the computation of diluted income (loss) per share	50,000	227,750